青云翻译

Prior to the dewatering of sludge should be quenched

During the dehydration of sludge should be carried out before quenching and tempering

In carries on before the dehydration to the sludge should carry on the quenching and retempering treatment

In the sludge dewatering carried out should be carried out before dealing with quality

During the dehydration of sludge should be carried out before quenching and tempering